/*****************************************************************************
- * rawdv.c : raw dv input module for vlc
+ * rawdv.c : raw DV input module for vlc
*****************************************************************************
- * Copyright (C) 2001 VideoLAN
- * $Id: rawdv.c,v 1.2 2003/01/07 21:49:01 fenrir Exp $
+ * Copyright (C) 2001-2007 VLC authors and VideoLAN
+ * $Id$
*
* Authors: Gildas Bazin <gbazin@netcourrier.com>
+ * Paul Corke <paul dot corke at datatote dot co dot uk>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h> /* malloc(), free() */
-#include <string.h> /* strdup() */
-#include <errno.h>
-#include <vlc/vlc.h>
-#include <vlc/input.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_demux.h>
+
+#include "rawdv.h"
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+#define HURRYUP_TEXT N_( "Hurry up" )
+#define HURRYUP_LONGTEXT N_( "The demuxer will advance timestamps if the " \
+ "input can't keep up with the rate." )
+
+static int Open ( vlc_object_t * );
+static void Close( vlc_object_t * );
-#include <sys/types.h>
+vlc_module_begin ()
+ set_shortname( "DV" )
+ set_description( N_("DV (Digital Video) demuxer") )
+ set_capability( "demux", 3 )
+ set_category( CAT_INPUT )
+ set_subcategory( SUBCAT_INPUT_DEMUX )
+ add_bool( "rawdv-hurry-up", false, HURRYUP_TEXT, HURRYUP_LONGTEXT, false )
+ set_callbacks( Open, Close )
+ add_shortcut( "rawdv" )
+vlc_module_end ()
-#include <codecs.h> /* BITMAPINFOHEADER, WAVEFORMATEX */
/*****************************************************************************
A little bit of background information (copied over from libdv glossary).
- DIF block: A block of 80 bytes. This is the basic data framing unit of the
DVC tape format, analogous to sectors of hard disc.
-
+
- Video Section: Each DIF sequence contains a video section, consisting of
135 DIF blocks, which are further subdivided into Video Segments.
*****************************************************************************/
-
-/*****************************************************************************
- * Constants
- *****************************************************************************/
-#define DV_PAL_FRAME_SIZE 144000
-#define DV_NTSC_FRAME_SIZE 122000
-
/*****************************************************************************
* Definitions of structures used by this plugin
*****************************************************************************/
{
int frame_size;
- es_descriptor_t *p_video_es;
- es_descriptor_t *p_audio_es;
+ es_out_id_t *p_es_video;
+ es_format_t fmt_video;
- /* codec specific stuff */
- BITMAPINFOHEADER *p_bih;
+ es_out_id_t *p_es_audio;
+ es_format_t fmt_audio;
+ int i_dsf;
double f_rate;
int i_bitrate;
/* program clock reference (in units of 90kHz) */
mtime_t i_pcr;
+ bool b_hurry_up;
};
/*****************************************************************************
* Local prototypes
*****************************************************************************/
-static int Activate ( vlc_object_t * );
-static void Deactivate( vlc_object_t * );
-static int Demux ( input_thread_t * );
-
-static uint32_t GetDWBE( uint8_t *p_buff )
-{
- return (uint32_t)p_buff[3] | ( ((uint32_t)p_buff[2]) << 8 ) |
- ( ((uint32_t)p_buff[1]) << 16 ) | ( ((uint32_t)p_buff[0]) << 24 );
-}
-
-/*****************************************************************************
- * Module descriptor
- *****************************************************************************/
-vlc_module_begin();
- set_description( _("raw dv demux") );
- set_capability( "demux", 2 );
- set_callbacks( Activate, NULL );
- add_shortcut( "rawdv" );
-vlc_module_end();
+static int Demux( demux_t * );
+static int Control( demux_t *, int i_query, va_list args );
/*****************************************************************************
- * Activate: initializes raw dv demux structures
+ * Open: initializes raw DV demux structures
*****************************************************************************/
-static int Activate( vlc_object_t * p_this )
+static int Open( vlc_object_t * p_this )
{
- input_thread_t *p_input = (input_thread_t *)p_this;
- byte_t *p_peek;
- uint32_t i_dword;
- demux_sys_t *p_rawdv;
- dv_header_t dv_header;
- dv_id_t dv_id;
- char *psz_ext;
-
- /* It isn't easy to recognize a raw dv stream. The chances that we'll
- * mistake a stream from another type for a raw dv stream are too high, so
+ demux_t *p_demux = (demux_t*)p_this;
+ demux_sys_t *p_sys;
+
+ const uint8_t *p_peek, *p_peek_backup;
+
+ uint32_t i_dword;
+ dv_header_t dv_header;
+ dv_id_t dv_id;
+
+ /* It isn't easy to recognize a raw DV stream. The chances that we'll
+ * mistake a stream from another type for a raw DV stream are too high, so
* we'll rely on the file extension to trigger this demux. Alternatively,
* it is possible to force this demux. */
- /* Check for dv file extension */
- psz_ext = strrchr ( p_input->psz_name, '.' );
- if( strcasecmp( psz_ext, ".dv") &&
- ( !p_input->psz_demux || strcmp(p_input->psz_demux, "rawdv") ) )
- {
- return -1;
- }
+ /* Check for DV file extension */
+ if( !demux_IsPathExtension( p_demux, ".dv" ) && !p_demux->b_force )
+ return VLC_EGENERIC;
- p_input->pf_demux = Demux;
-
- /* Have a peep at the show. */
- if( input_Peek(p_input, &p_peek, DV_PAL_FRAME_SIZE) < DV_NTSC_FRAME_SIZE )
+ if( stream_Peek( p_demux->s, &p_peek, DV_PAL_FRAME_SIZE ) <
+ DV_NTSC_FRAME_SIZE )
{
/* Stream too short ... */
- msg_Err( p_input, "cannot peek()" );
- return -1;
+ msg_Err( p_demux, "cannot peek()" );
+ return VLC_EGENERIC;
}
+ p_peek_backup = p_peek;
/* fill in the dv_id_t structure */
i_dword = GetDWBE( p_peek ); p_peek += 4;
if( dv_id.sct != 0 )
{
- msg_Warn( p_input, "not a raw dv stream header" );
- return -1;
+ msg_Warn( p_demux, "not a raw DV stream header" );
+ return VLC_EGENERIC;
}
/* fill in the dv_header_t structure */
i_dword <<= 1;
if( i_dword >> (32 - 1) ) /* incorrect bit */
{
- msg_Warn( p_input, "incorrect bit" );
- return -1;
+ msg_Warn( p_demux, "incorrect bit" );
+ return VLC_EGENERIC;
}
i_dword = GetDWBE( p_peek ); p_peek += 4;
p_peek += 72; /* skip rest of DIF block */
+ p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
+ if( !p_sys )
+ return VLC_ENOMEM;
- /* Setup the structures for our demuxer */
- if( !( p_rawdv = malloc( sizeof( demux_sys_t ) ) ) )
- {
- msg_Err( p_input, "out of memory" );
- return -1;
- }
- memset( p_rawdv, 0, sizeof( demux_sys_t ) );
- p_rawdv->p_bih = NULL;
- p_input->p_demux_data = p_rawdv;
+ p_sys->b_hurry_up = var_CreateGetBool( p_demux, "rawdv-hurry-up" );
+ msg_Dbg( p_demux, "Realtime DV Source: %s", (p_sys->b_hurry_up)?"Yes":"No" );
- p_rawdv->p_bih = (BITMAPINFOHEADER *) malloc( sizeof(BITMAPINFOHEADER) );
- if( !p_rawdv->p_bih )
- {
- msg_Err( p_input, "out of memory" );
- goto error;
- }
- p_rawdv->p_bih->biSize = sizeof(BITMAPINFOHEADER);
- p_rawdv->p_bih->biCompression = VLC_FOURCC( 'd','v','s','d' );
- p_rawdv->p_bih->biSize = 40;
- p_rawdv->p_bih->biWidth = 720;
- p_rawdv->p_bih->biHeight = dv_header.dsf ? 576 : 480;
- p_rawdv->p_bih->biPlanes = 1;
- p_rawdv->p_bih->biBitCount = 24;
- p_rawdv->p_bih->biSizeImage =
- p_rawdv->p_bih->biWidth * p_rawdv->p_bih->biHeight
- * (p_rawdv->p_bih->biBitCount >> 3);
-
- /* Properties of our video */
- if( dv_header.dsf )
- {
- p_rawdv->frame_size = 12 * 150 * 80;
- p_rawdv->f_rate = 25;
- }
- else
- {
- p_rawdv->frame_size = 10 * 150 * 80;
- p_rawdv->f_rate = 29.97;
- }
+ p_sys->i_dsf = dv_header.dsf;
+ p_sys->frame_size = dv_header.dsf ? DV_PAL_FRAME_SIZE
+ : DV_NTSC_FRAME_SIZE;
+ p_sys->f_rate = dv_header.dsf ? 25 : 29.97;
- /* necessary because input_SplitBuffer() will only get
- * INPUT_DEFAULT_BUFSIZE bytes at a time. */
- p_input->i_bufsize = p_rawdv->frame_size;
+ p_sys->i_pcr = 0;
+ p_sys->p_es_video = NULL;
+ p_sys->p_es_audio = NULL;
- /* Create one program */
- vlc_mutex_lock( &p_input->stream.stream_lock );
- if( input_InitStream( p_input, 0 ) == -1)
- {
- vlc_mutex_unlock( &p_input->stream.stream_lock );
- msg_Err( p_input, "cannot init stream" );
- goto error;
- }
- if( input_AddProgram( p_input, 0, 0) == NULL )
+ p_sys->i_bitrate = 0;
+
+ es_format_Init( &p_sys->fmt_video, VIDEO_ES, VLC_CODEC_DV );
+ p_sys->fmt_video.video.i_width = 720;
+ p_sys->fmt_video.video.i_height= dv_header.dsf ? 576 : 480;;
+
+ p_sys->p_es_video = es_out_Add( p_demux->out, &p_sys->fmt_video );
+
+ /* Audio stuff */
+ p_peek = p_peek_backup + 80*6+80*16*3 + 3; /* beginning of AAUX pack */
+ if( *p_peek == 0x50 )
{
- vlc_mutex_unlock( &p_input->stream.stream_lock );
- msg_Err( p_input, "cannot add program" );
- goto error;
+ dv_get_audio_format( &p_sys->fmt_audio, &p_peek[1] );
+ p_sys->p_es_audio = es_out_Add( p_demux->out, &p_sys->fmt_audio );
}
- p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
- p_input->stream.i_mux_rate = p_rawdv->frame_size * p_rawdv->f_rate;
- vlc_mutex_unlock( &p_input->stream.stream_lock );
-
- /* Add video stream */
- vlc_mutex_lock( &p_input->stream.stream_lock );
- p_rawdv->p_video_es = input_AddES( p_input,
- p_input->stream.p_selected_program,
- 1, 0 );
- p_rawdv->p_video_es->i_stream_id = 0;
- p_rawdv->p_video_es->i_fourcc = VLC_FOURCC( 'd','v','s','d' );
- p_rawdv->p_video_es->i_cat = VIDEO_ES;
- p_rawdv->p_video_es->p_bitmapinfoheader = (void *)p_rawdv->p_bih;
- input_SelectES( p_input, p_rawdv->p_video_es );
- vlc_mutex_unlock( &p_input->stream.stream_lock );
-
- /* Init pcr */
- p_rawdv->i_pcr = 0;
-
- return 0;
-
- error:
- if( p_rawdv->p_bih ) free( p_rawdv->p_bih );
- Deactivate( (vlc_object_t *)p_input );
- return -1;
+
+ p_demux->pf_demux = Demux;
+ p_demux->pf_control = Control;
+ return VLC_SUCCESS;
}
/*****************************************************************************
- * Deactivate: frees unused data
+ * Close: frees unused data
*****************************************************************************/
-static void Deactivate( vlc_object_t *p_this )
+static void Close( vlc_object_t *p_this )
{
- input_thread_t *p_input = (input_thread_t *)p_this;
- demux_sys_t *p_rawdv = (demux_sys_t *)p_input->p_demux_data;
+ demux_t *p_demux = (demux_t*)p_this;
+ demux_sys_t *p_sys = p_demux->p_sys;
- free( p_rawdv );
+ var_Destroy( p_demux, "rawdv-hurry-up");
+ free( p_sys );
}
/*****************************************************************************
*****************************************************************************
* Returns -1 in case of error, 0 in case of EOF, 1 otherwise
*****************************************************************************/
-static int Demux( input_thread_t * p_input )
+static int Demux( demux_t *p_demux )
{
- demux_sys_t *p_rawdv = (demux_sys_t *)p_input->p_demux_data;
- decoder_fifo_t *p_fifo =
- p_input->stream.p_selected_program->pp_es[0]->p_decoder_fifo;
- pes_packet_t *p_pes;
- data_packet_t *p_data;
- ssize_t i_read;
-
- if( p_fifo == NULL )
- {
- return -1;
- }
+ demux_sys_t *p_sys = p_demux->p_sys;
+ block_t *p_block;
+ bool b_audio = false;
- if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
+ if( p_sys->b_hurry_up )
{
- off_t i_pos;
-
- msg_Warn( p_input, "synchro reinit" );
-
- /* If the user tried to seek in the stream, we need to make sure
- * the new position is at a DIF block boundary. */
- vlc_mutex_lock( &p_input->stream.stream_lock );
- i_pos= p_input->stream.p_selected_area->i_tell;
- vlc_mutex_unlock( &p_input->stream.stream_lock );
-
- if( (i_pos % p_rawdv->frame_size) &&
- p_input->stream.b_seekable &&
- p_input->stream.i_method == INPUT_METHOD_FILE )
- {
- p_input->pf_seek( p_input, (i_pos / p_rawdv->frame_size)
- * p_rawdv->frame_size );
- input_AccessReinit( p_input );
- }
+ /* 3 frames */
+ p_sys->i_pcr = mdate() + (p_sys->i_dsf ? 120000 : 90000);
}
/* Call the pace control */
- input_ClockManageRef( p_input, p_input->stream.p_selected_program,
- p_rawdv->i_pcr );
-
- i_read = input_SplitBuffer( p_input, &p_data, p_rawdv->frame_size );
- if( i_read <= 0 )
+ es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + p_sys->i_pcr );
+ p_block = stream_Block( p_demux->s, p_sys->frame_size );
+ if( p_block == NULL )
{
- return i_read;
+ /* EOF */
+ return 0;
}
- p_pes = input_NewPES( p_input->p_method_data );
- if( p_pes == NULL )
+ if( p_sys->p_es_audio )
{
- msg_Err( p_input, "out of memory" );
- input_DeletePacket( p_input->p_method_data, p_data );
- return -1;
+ es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE,
+ p_sys->p_es_audio, &b_audio );
}
- p_pes->i_rate = p_input->stream.control.i_rate;
- p_pes->p_first = p_pes->p_last = p_data;
- p_pes->i_pes_size = i_read;
- p_pes->i_nb_data = 1;
- p_pes->i_pts =
- input_ClockGetTS( p_input, p_input->stream.p_selected_program,
- p_rawdv->i_pcr );
+ p_block->i_dts =
+ p_block->i_pts = VLC_TS_0 + p_sys->i_pcr;
- input_DecodePES( p_fifo, p_pes );
+ if( b_audio )
+ {
+ block_t *p_audio_block = dv_extract_audio( p_block );
+ if( p_audio_block )
+ es_out_Send( p_demux->out, p_sys->p_es_audio, p_audio_block );
+ }
- p_rawdv->i_pcr += ( 90000 / p_rawdv->f_rate );
+ es_out_Send( p_demux->out, p_sys->p_es_video, p_block );
+
+ if( !p_sys->b_hurry_up )
+ {
+ p_sys->i_pcr += ( INT64_C(1000000) / p_sys->f_rate );
+ }
return 1;
}
+
+/*****************************************************************************
+ * Control:
+ *****************************************************************************/
+static int Control( demux_t *p_demux, int i_query, va_list args )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+
+ /* XXX: DEMUX_SET_TIME is precise here */
+ return demux_vaControlHelper( p_demux->s,
+ 0, -1,
+ p_sys->frame_size * p_sys->f_rate * 8,
+ p_sys->frame_size, i_query, args );
+}
+
projects / vlc / blobdiff